Controlling means for combustion-engines.



W1 YYVESSES W. N. PARK. CONTROLLING MEANS FOR COMBUSTION ENGINES.

' APPLICATION FILED DEC. 20, 1910.

Patented Oct. 15, 1912.

, f UNITED STATES PATENT onmon.

To all whom it may concern:

Be it known that 1, WILLIAM N. PARK, a citizen of the United States,residing at Corning, in the county of Steuben and State of New 'York,have invented certain new and useful Imprqvements in Controlling Meansfor Combustion-Engines; and I do hereby declare the following to be afull, clear, and exact'description ofthe invention, such as will enableothersqski-lled in the art to which it appertains to make and use thesame.

My invention relates to new .and useful improvements in controllingmeans for combustion engines and my object is to provide means foradvancing or retarding the sparking mechanism in the motor.

Aafurther object is to provide a governor and connect the same to thedriving shaft of the engine, and,

'20 A further object is to provide means for connecting the commutatordisk to the governor, whereby said disk will be operated to advance orretard the action of the sparking mechanism by the action of thegovernor,

Other objects and advantages will be hereinafter referred to and moreparticularly pointed out in the'specification and claim.

In the accompanying drawings which are made a part of this application,Figure 1 80 is a die ammatic view of the governor and means or attachingthe same to the commutator disk, and, 2 is a sectional view 'as seen online 2-2 1g. 1.

Referringto the drawings in which simi- 85 let reference numeralsdesignate corresponding parts throughout the several views, 1 indicatesthe commutator shaft which is constructed in the usual 91 any preferredform and 2 indicates a circuit reaker adapted to cooperate with parts ofthe commutator.

Surrounding the shaft 1 is the commutator disk 3, which is likewiseconstructed .in the usual or any preferred form and has 4 around itsperiphery contact points 4, which are adapted to cooperate with thecircuit breaker.

The form of commutator herein shown is designed to be used in connectionwith a four-cylinder engine, thereby requiring four ontact points forobtaining the proper ignition of the gases and as the speed'of theengine varies at different times, it becomes necessary to advance orretard the point of ignition or the time of making the spark. When usinga stationary ignition point,

Specification of Letters Patent. Application filed December 1910. SerialNo. 598;;01;

WILLIAM N. PARK, OF, C'ORNING, NEW YORK.

CONTROLLING 'MEANS FOR CONfBUSTION-ENGINES.

Patented Oct. 15,1912.

the gas would-be eXplodedat-thesame time i whether the engine wasrunningat two .hun-

dred and fifty revolutions per minute'or at three hundred and fiftyrevolutions per 50 minute so that at the-higher speed, the gas would notbe exploded at the highest point of compression, but would be delayeduntil after this point had been passed, in which event the engine doesnot develop its full 5 power. To this end, therefore, I provide myimproved means for'advancingor retarding the oint of ignition, wherebythe explosion wi 1 always occur at the point of highest compression,thus relieving the crank shaft and bearings of the extra strainoccasioned by improper ignition. In accomplishingthis result, the isprovided with an ear 5, to which is attached one end of a' link 6, theopposit'e end of the link being attached to one arm 7 of a bell;cranklever 8, the opposite arm 9 of the Lbellcrank lever being attached to aitman 10, thebell crank lever being pivotal y mounted to any suitableobject or part of the engine.

One end of the pitman 10 is bifurcated form a yoke 11, the ends of whichextendon opposite sides of a head'12, said head havin a circumferentialgroove 13, into whic extend rollers 14 carried by the ends of the yoke.The head 12 is slidably mounted upon a shaft'15 and in order to causethe head to rotate with the shaft and at the same time permit the headto move longitudinally thereof, the shaft is provided with a channel 16,into which extends a rib 17. on the head. The channeled end of the shaft15 is provided with a ri id stop collar 15 for limiting the outwarmovement of the head 12.

One end of the head 12 has attached thereto spring arms 1.8, theopposite ends of said 5 arms being 'attached'to a collar 19, whichcollar surrounds the shaft 15 and is adjustably attached thereto b meansof a' set screw 20. By means of t e set screw 20 the entire governorconsisting of the head 12, collar 19 and connecting arms 18 may be adjusted longitudinally of the shaft 15, while the movement of saidgovernor upon'said shaft is limited by the stop collar 15.

The head, spring arms and shaft upon form of lubricant retaining mediummay be.

which the head is mounted serve as a governor and the shaft is connectedto the crank shaft of the engine in any suitable manner,'

as by providing a cog 22 on the shaft 15 and connecting said cog with asimilar gear (not shown) attached to the crank shaft of the engine. I

placed and communicating with the cavities -is a port 24; through whichthe oil may be Copies of this patent may be bhtained for live centseach, By addressing the "Commissioner of Patents,

introduced into the cavities.

In operation when the engine is first started, the speed thereof isnaturally at a low point so that the contact points will be turned tosuch point as to cause the spark or ignition coincident to the cylinderof the engine reaching its highest oint of compression and as the speed0 the engine graduallyincreases, the spring arms 18 will be extended andthe head moved downwardly, which will result ii -rocking the bell cranklever and gradually moving the position of the contact point withrespect to the circuit breaker, thus gradually advancing the pointofignition as the speed of the en g ne'mc'reases m which event the pointof ignition is always maintained at a proper position to explode thegases'when the piston of the engine has reached its highest point ofcompression. It will likewise be .seen that as thespeed the enginedecreases, the contact points of the COmmUf tator will be properlyadjusted to retard the ignition thus adapting in connection with an 'enspeed the engine may attain.

It will further" be seen that in view offthe. simplicity of the device,it can be readily A7 evice f r 5 gme at what??? I attached to the engineand at a expense.

It will further be understood thatthisde vice can be used in connectionwith all forms of engines using a gaseous exploding product forpropelling theengine.

What I claim is An attachment for engines comprising} shaft having oneend thereof channeled, a head slidably mounted on the channeled end ofsaid shaft and rotatable therewith, acol- .lar.m0unted on said shaft,.meansjfon'adjustably securing said collarlofigitudina-lly of saidshaft,spring arms connectedatop '5 posite ends to said head and collar;weights carried centrally of said spring arms, and a rigid stop collarcarried by the end of said shaft for limiting the outward movement ofsaid head. v

In testimony whereof I havesigned'my name to this specification in the'presence'of two subscribing witnesses.

WILLIAM N. PARKI- Witnesses:

LENA BARBER, FRANK H. FERms.

Washington, D. O. t l

